package kubernetes

import (
	"net/http"

	httperror "github.com/portainer/libhttp/error"
	"github.com/portainer/libhttp/request"
	"github.com/portainer/libhttp/response"
	"github.com/portainer/portainer-ee/api/database/models"
)

// @id GetKubernetesNamespaces
// @summary Fetches a list of namespaces for a given cluster
// @description Fetches a list of namespaces for a given cluster
// @description **Access policy**: authenticated
// @tags kubernetes
// @security ApiKeyAuth
// @security jwt
// @accept json
// @produce json
// @success 200 "Success"
// @failure 400 "Invalid request"
// @failure 401 "Unauthorized"
// @failure 403 "Permission denied"
// @failure 404 "Environment(Endpoint) not found"
// @failure 500 "Server error"
// @router /kubernetes/{id}/namespaces [get]
func (handler *Handler) getKubernetesNamespaces(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
	cli := handler.KubernetesClient

	namespaces, err := cli.GetNamespaces()
	if err != nil {
		return &httperror.HandlerError{
			StatusCode: http.StatusInternalServerError,
			Message:    "Unable to retrieve nodes limits",
			Err:        err,
		}
	}

	return response.JSON(w, namespaces)
}

// @id CreateKubernetesNamespace
// @summary Creates a namespace in a given cluster
// @description Creates a namespace in a given cluster
// @description **Access policy**: authenticated
// @tags kubernetes
// @security ApiKeyAuth
// @security jwt
// @accept json
// @produce json
// @param body body models.K8sNamespaceInfo true "namespace to create"
// @success 200 "Success"
// @failure 400 "Invalid request"
// @failure 401 "Unauthorized"
// @failure 403 "Permission denied"
// @failure 404 "Environment(Endpoint) not found"
// @failure 500 "Server error"
// @router /kubernetes/{id}/namespaces [post]
func (handler *Handler) createKubernetesNamespace(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
	cli := handler.KubernetesClient

	var payload models.K8sNamespaceInfo
	err := request.DecodeAndValidateJSONPayload(r, &payload)
	if err != nil {
		return &httperror.HandlerError{
			StatusCode: http.StatusBadRequest,
			Message:    "Invalid request payload",
			Err:        err,
		}
	}

	err = cli.CreateNamespace(payload)
	if err != nil {
		return &httperror.HandlerError{
			StatusCode: http.StatusInternalServerError,
			Message:    "Unable to retrieve nodes limits",
			Err:        err,
		}
	}
	return nil
}

// @id DeleteKubernetesNamespaces
// @summary Delete a namespace from a given cluster
// @description **Access policy**: authenticated
// @tags kubernetes
// @security ApiKeyAuth
// @security jwt
// @accept json
// @produce json
// @success 200 "Success"
// @failure 400 "Invalid request"
// @failure 401 "Unauthorized"
// @failure 403 "Permission denied"
// @failure 404 "Environment(Endpoint) not found"
// @failure 500 "Server error"
// @router /kubernetes/{id}/namespace/{namespace} [delete]
func (handler *Handler) deleteKubernetesNamespaces(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
	cli := handler.KubernetesClient

	namespace, err := request.RetrieveRouteVariableValue(r, "namespace")
	if err != nil {
		return &httperror.HandlerError{
			StatusCode: http.StatusBadRequest,
			Message:    "Invalid namespace identifier route variable",
			Err:        err,
		}
	}

	err = cli.DeleteNamespace(namespace)
	if err != nil {
		return &httperror.HandlerError{
			StatusCode: http.StatusInternalServerError,
			Message:    "Unable to retrieve nodes limits",
			Err:        err,
		}
	}

	return nil
}

// @id UpdateKubernetesNamespace
// @summary Updates a namespace in a given cluster
// @description Updates a namespace in a given cluster
// @description **Access policy**: authenticated
// @tags kubernetes
// @security ApiKeyAuth
// @security jwt
// @accept json
// @produce json
// @param body body models.K8sNamespaceInfo true "namespace to update"
// @success 200 "Success"
// @failure 400 "Invalid request"
// @failure 401 "Unauthorized"
// @failure 403 "Permission denied"
// @failure 404 "Environment(Endpoint) not found"
// @failure 500 "Server error"
// @router /kubernetes/{id}/namespaces [put]
func (handler *Handler) updateKubernetesNamespace(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
	cli := handler.KubernetesClient

	var payload models.K8sNamespaceInfo
	err := request.DecodeAndValidateJSONPayload(r, &payload)
	if err != nil {
		return &httperror.HandlerError{
			StatusCode: http.StatusBadRequest,
			Message:    "Invalid request payload",
			Err:        err,
		}
	}

	err = cli.UpdateNamespace(payload)
	if err != nil {
		return &httperror.HandlerError{
			StatusCode: http.StatusInternalServerError,
			Message:    "Unable to retrieve nodes limits",
			Err:        err,
		}
	}
	return nil
}